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CVE-2026-23564

Transmission of Unencrypted Data in Content Distribution Service

MEDIUM
6.5
CVSS Score
Published: January 29, 2026 at 08:43 AM UTC
Updated: June 17, 2026 at 10:21 AM UTC
2 products affected across 1 vendorDigital Employee ExperienceDEX

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause normally encrypted UDP traffic to be sent in cleartext. This can result in disclosure of sensitive information.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Digital Employee Experience· Teamviewer
95%
v < 26.1
microsoft-windows (environment)
DEX· Teamviewer
60%
v < 26.1
Affected range stops below 26.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1001/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMTV
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-319

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